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/*
* Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org)
* Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org>
* Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
* Copyright (C) 2006-2008 Michael Buesch <mb@bu3sch.de>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/init.h>
#include <linux/types.h>
#include <linux/tty.h>
#include <linux/serial.h>
#include <linux/serial_core.h>
#include <linux/serial_reg.h>
#include <linux/serial_8250.h>
#include <asm/bootinfo.h>
#include <asm/time.h>
#include <asm/reboot.h>
#include <asm/cfe.h>
#include <linux/pm.h>
#include <linux/ssb/ssb.h>
#include <linux/ssb/ssb_embedded.h>
#include <nvram.h>
extern void bcm47xx_pci_init(void);
extern void bcm47xx_time_init(void);
struct ssb_bus ssb;
static void bcm47xx_machine_restart(char *command)
{
printk(KERN_ALERT "Please stand by while rebooting the system...\n");
local_irq_disable();
/* CFE has a reboot callback, but that does not work.
* Oopses with: Reserved instruction in kernel code.
*/
/* Set the watchdog timer to reset immediately */
if (ssb_watchdog_timer_set(&ssb, 1))
printk(KERN_EMERG "SSB watchdog-triggered reboot failed!\n");
while (1)
cpu_relax();
}
static void bcm47xx_machine_halt(void)
{
/* Disable interrupts and watchdog and spin forever */
local_irq_disable();
if (ssb_watchdog_timer_set(&ssb, 0))
printk(KERN_EMERG "Failed to disable SSB watchdog!\n");
while (1)
cpu_relax();
}
static void e_aton(char *str, char *dest)
{
int i = 0;
if (str == NULL) {
memset(dest, 0, 6);
return;
}
for (;;) {
dest[i++] = (char) simple_strtoul(str, NULL, 16);
str += 2;
if (!*str++ || i == 6)
break;
}
}
static void bcm47xx_fill_sprom(struct ssb_sprom *sprom)
{
char *s;
memset(sprom, 0xFF, sizeof(struct ssb_sprom));
sprom->revision = 1;
if ((s = nvram_get("il0macaddr")))
e_aton(s, sprom->il0mac);
if ((s = nvram_get("et0macaddr")))
e_aton(s, sprom->et0mac);
if ((s = nvram_get("et1macaddr")))
e_aton(s, sprom->et1mac);
if ((s = nvram_get("et0phyaddr")))
sprom->et0phyaddr = simple_strtoul(s, NULL, 0);
if ((s = nvram_get("et1phyaddr")))
sprom->et1phyaddr = simple_strtoul(s, NULL, 0);
if ((s = nvram_get("et0mdcport")))
sprom->et0mdcport = !!simple_strtoul(s, NULL, 10);
if ((s = nvram_get("et1mdcport")))
sprom->et1mdcport = !!simple_strtoul(s, NULL, 10);
if ((s = nvram_get("pa0b0")))
sprom->pa0b0 = simple_strtoul(s, NULL, 0);
if ((s = nvram_get("pa0b1")))
sprom->pa0b1 = simple_strtoul(s, NULL, 0);
if ((s = nvram_get("pa0b2")))
sprom->pa0b2 = simple_strtoul(s, NULL, 0);
if ((s = nvram_get("pa1b0")))
sprom->pa1b0 = simple_strtoul(s, NULL, 0);
if ((s = nvram_get("pa1b1")))
sprom->pa1b1 = simple_strtoul(s, NULL, 0);
if ((s = nvram_get("pa1b2")))
sprom->pa1b2 = simple_strtoul(s, NULL, 0);
if ((s = nvram_get("wl0gpio0")))
sprom->gpio0 = simple_strtoul(s, NULL, 0);
if ((s = nvram_get("wl0gpio1")))
sprom->gpio1 = simple_strtoul(s, NULL, 0);
if ((s = nvram_get("wl0gpio2")))
sprom->gpio2 = simple_strtoul(s, NULL, 0);
if ((s = nvram_get("wl0gpio3")))
sprom->gpio3 = simple_strtoul(s, NULL, 0);
if ((s = nvram_get("pa0maxpwr")))
sprom->maxpwr_bg = simple_strtoul(s, NULL, 0);
if ((s = nvram_get("pa1maxpwr")))
sprom->maxpwr_a = simple_strtoul(s, NULL, 0);
if ((s = nvram_get("pa0itssit")))
sprom->itssi_bg = simple_strtoul(s, NULL, 0);
if ((s = nvram_get("pa1itssit")))
sprom->itssi_a = simple_strtoul(s, NULL, 0);
sprom->boardflags_lo = 0;
if ((s = nvram_get("boardflags")))
sprom->boardflags_lo = simple_strtoul(s, NULL, 0);
sprom->boardflags_hi = 0;
if ((s = nvram_get("boardflags2")))
sprom->boardflags_hi = simple_strtoul(s, NULL, 0);
}
static int bcm47xx_get_invariants(struct ssb_bus *bus, struct ssb_init_invariants *iv)
{
char *s;
iv->boardinfo.vendor = SSB_BOARDVENDOR_BCM;
if ((s = nvram_get("boardtype")))
iv->boardinfo.type = (u16)simple_strtoul(s, NULL, 0);
if ((s = nvram_get("boardrev")))
iv->boardinfo.rev = (u16)simple_strtoul(s, NULL, 0);
bcm47xx_fill_sprom(&iv->sprom);
return 0;
}
void __init plat_mem_setup(void)
{
int i, err;
char *s;
struct ssb_mipscore *mcore;
err = ssb_bus_ssbbus_register(&ssb, SSB_ENUM_BASE, bcm47xx_get_invariants);
if (err) {
const char *msg = "Failed to initialize SSB bus (err %d)\n";
cfe_printk(msg, err); /* Make sure the message gets out of the box. */
panic(msg, err);
}
mcore = &ssb.mipscore;
s = nvram_get("kernel_args");
if (s && !strncmp(s, "console=ttyS1", 13)) {
struct ssb_serial_port port;
cfe_printk("Swapping serial ports!\n");
/* swap serial ports */
memcpy(&port, &mcore->serial_ports[0], sizeof(port));
memcpy(&mcore->serial_ports[0], &mcore->serial_ports[1], sizeof(port));
memcpy(&mcore->serial_ports[1], &port, sizeof(port));
}
for (i = 0; i < mcore->nr_serial_ports; i++) {
struct ssb_serial_port *port = &(mcore->serial_ports[i]);
struct uart_port s;
memset(&s, 0, sizeof(s));
s.line = i;
s.membase = port->regs;
s.irq = port->irq + 2;
s.uartclk = port->baud_base;
s.flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
s.iotype = SERIAL_IO_MEM;
s.regshift = port->reg_shift;
early_serial_setup(&s);
}
cfe_printk("Serial init done.\n");
_machine_restart = bcm47xx_machine_restart;
_machine_halt = bcm47xx_machine_halt;
pm_power_off = bcm47xx_machine_halt;
board_time_init = bcm47xx_time_init;
}
EXPORT_SYMBOL(ssb);
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